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Article Dans Une Revue Monthly Notices of the Royal Astronomical Society Année : 2019

A generalized differential image motion monitor

E. Aristidi
A. Ziad
  • Fonction : Auteur
J. Chabé

Résumé

We present a generalized differential image motion monitor (GDIMM). It is a compact instrument dedicated to the measurement of four parameters of optical turbulence: seeing, isoplanatic angle, coherence time and wavefront coherence outer scale. The GDIMM is based on a small telescope (28 cm diameter) equipped with a three-hole mask at its entrance pupil. The instrument is fully automatic, and performs continuous monitoring of turbulence parameters at the Calern Observatory (France). This paper gives a description of the instrument, data processing and error budget. We also present statistics of three and a half years of monitoring of turbulence parameters above the Calern Observatory.
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Dates et versions

hal-02283284 , version 1 (30-05-2023)

Identifiants

Citer

E. Aristidi, A. Ziad, J. Chabé, Y. Fanteï-Caujolle, Cédric Renaud, et al.. A generalized differential image motion monitor. Monthly Notices of the Royal Astronomical Society, 2019, 486 (1), pp.915-925. ⟨10.1093/mnras/stz854⟩. ⟨hal-02283284⟩
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